What is this thing ? Image Credit: Facebook / Chantha SitoulukEerie footage of a one-legged ghost of Thai mythology has recently been viewed over 3.5 million times.In Thailand, the 'Gong Goi' is a mythological child-sized spirit that lives in the woods.

It is said to appear as roughly humanoid but with a single, central leg on which it hops around. It has long dark hair and earns its name from its tendency to scream 'Gong Goi! Gong Goi!'

This latest viral video, which was uploaded on to Facebook last week by Chantha Sitouluk, allegedly shows the elusive specter hopping along the side of a road while illuminated by the lights of a car.

But is this really evidence of the legendary Gong Goi or is something else going on ?

While a fair number of viewers in Thailand seem convinced by the footage, it certainly seems possible that what the video actually shows is someone dressed up as the ghost as part of a prank.